1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fff932213ce8eeac43b8586c187cbe5009dc7fc2c84a2246af3c7c058b9d3f. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b77026c8-4f16-4ddb-9256-029d42f80062.json and https://artists.proofprofile.net/proofs/artist/b77026c8-4f16-4ddb-9256-029d42f80062.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffb833a57ad5b48bd2e0d527fb924543671400bdc6dd7e9b3ac9ed04419f081. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:35:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2301515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578961c5b1c3de7127f3756d89a34c2e02773341c1fd31df4ba4fa899a5de38e. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2301746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab3c182ecbfea20ff15e2901a3475456681cdbf74ecf323adee75f445a7da79. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2301743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6067bfc54daa8cebe71345aa9e38cd268cd215c68305aac32bb4a6957f07cf14. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2302874.
Burn Our Bridges Down - Nightcore - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc0769ef12122e082bee35495e78d1d24b6a7411dab492fa6899d6b0ae8d262. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2305209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9800f409fd1e83849b60f4c39e734147a60619db5d737af210e3fad74e87caa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2306367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c2bcc0153540de9d4c4198ae6a69e6ff405ad6cecf0c66eb01691421338c1d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2202069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8fabe2663a319274efad30f8adf2de463eccc8afc0e32fc3199cebbd51c218. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882128840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f73ae001d233986f5c116afaa32c653c7a5e07d30a1625fb82c30dc443c6221. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882228689.
Show Me the Sky, Show Me the Moon - Nightcore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27f3f4b96dc6cfcc0a85d6d2af17ca476179e23be7a5197e62a11401ecdb907. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882228685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191a38dab847ab7ac76ab749a0286e7fd18feb863f44933337641bd0262670ef. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882224798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd732dc83e3408da154f966e4679c06922bfb079584b0a50d57102efcc449352. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882228688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ea192b21417e6ee6cf147c0d6ebde6a151d8b65a6e0b11d2471279902d67b0. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T20:37:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2300744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd409e27a751a552ec403ca9bc381fa3db725f0661c338d58107ca1309af3cf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2203466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75c68f7ca740c268d64c59853ddce944feff0f0b9fccf6be3881ca2fc30a8d1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f1dba54d216487f45a94b36f96a7944b829b928fc2f9518f5e12d024eb0f57. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2203331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0127e4ee6b11ffa3304b4ac7fb31221facd0b242de11d5b142d8f541b763fa89. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-21T20:39:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2305369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548e325854e89594685fa3f5533bc42c6c5a6418ea312dd97a41dc2d5ea6a0f8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2305357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13012273f0fe3c702ff8b0c4df6c01b35c88a320f4a0646e5fa4cea7fb450ad2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2308200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f309beb3e570618de02515d9b5ce3108898e0e839fbf6f6d201e812965d0ae1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2308201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85110e8eeb3bede5f159f924607a56cfe4d94b41808a80b5cfdbabbeda100742. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2309552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abc352123cb6c24b3129409689ef729b15a9cc2a951cf1f70f68b3d852cc3f8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2309551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a602959597d83b97f6b1f9bde3d41f639dda89242217dae222dfb68beaacf94. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2309553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f091309994c0eee065f5ea4b53965725c0e457a5aaaf32ee4ae4f967fb0b8c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2309554.
Perfect Storm (Sped Up - Nightcore Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0127e4ee6b11ffa3304b4ac7fb31221facd0b242de11d5b142d8f541b763fa89. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2305369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548e325854e89594685fa3f5533bc42c6c5a6418ea312dd97a41dc2d5ea6a0f8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2305357.
My Life is in Circles (Sped Up - Nightcore)
Little Do You Know - Nightcore Switching Vocals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4bd8db38346cf018f2d8ff9f5a9d65010a039758f5d2ddf37d917e1380d1cb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2307658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4385c92cc85bb5421cd8a0749b25c49a03586c640b1c9a0861adcb852f3135. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2307659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f4a14ce13d2dfd750f12e27dd6daa8a3d74f3f0d9b7c97af2f665d95b3bde7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2307660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b1515c6a0f8165bc78ee8f948b9526595593de8ebc691f3e6eb570b1d829ad. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2400481.
House With No Mirrors - Sped Up + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69f1d7808ccfe9736e3028d73ea0ddcfdb5b31e2bb6c31002b4a71818ae22b0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2400483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3a68031475dbd6740b309548281ef917ce9629e59ea3210dbbfb4594b6798c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2308204.
Nothing's Gonna Change My Love For You - Nightcore Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bd9751d796f412805954a30926cbdc24caee17a41a89c91a00cc08b45b25bb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2308543.
Nothing's Gonna Change My Love For You - Slowed + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7d16ea57a5074f4e7e46842b5e4c13e7b47c0d1a4023f5d349b61e8af23df4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2308544.
Nothing's Gonna Change My Love For You - Sped Up + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8121e7bc26ed75075f5443c05504f4b70773ee17ec151064549a9e825bbe964. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2308545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631f5d22eab7ba76d6c7705f2fdfea379a9530d786c722b7793308e5de4986ee. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2308169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1af13b5ed84ce88c6f62b2475059f4f5515dfa61136fda3e561c35b8bbc052d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2307590.